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#include "flang/Common/leading-zero-bit-count.h"
#include "testing.h"
using Fortran::common::LeadingZeroBitCount;
int main() {
MATCH(64, LeadingZeroBitCount(std::uint64_t{0}));
for (int j{0}; j < 64; ++j) {
for (int k{0}; k < j; ++k) {
std::uint64_t x = (std::uint64_t{1} << j) | (std::uint64_t{1} << k);
MATCH(63 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k);
}
}
MATCH(32, LeadingZeroBitCount(std::uint32_t{0}));
for (int j{0}; j < 32; ++j) {
for (int k{0}; k < j; ++k) {
std::uint32_t x = (std::uint32_t{1} << j) | (std::uint32_t{1} << k);
MATCH(31 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k);
}
}
MATCH(16, LeadingZeroBitCount(std::uint16_t{0}));
for (int j{0}; j < 16; ++j) {
for (int k{0}; k < j; ++k) {
std::uint16_t x = (std::uint16_t{1} << j) | (std::uint16_t{1} << k);
MATCH(15 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k);
}
}
MATCH(8, LeadingZeroBitCount(std::uint8_t{0}));
for (int j{0}; j < 8; ++j) {
for (int k{0}; k < j; ++k) {
std::uint8_t x = (std::uint8_t{1} << j) | (std::uint8_t{1} << k);
MATCH(7 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k);
}
}
return testing::Complete();
}
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